DESCRIPTION
-
Speaker-level T-harness designed for select Toyota & Lexus vehicles equipped with factory amplified audio systems
-
Allows plug-and-play access to speaker signal wiring for amplifier or DSP integration
-
Preserves OEM wiring — no cutting, no splicing
FEATURES
-
Enables addition of aftermarket amplifiers, DSP processors, or upgraded speakers while retaining factory head unit and system functions
-
Full-range speaker signal maintained through harness — suitable for active or passive upgrade paths
-
Maintains factory chimes, Bluetooth audio, navigation prompts, and vehicle safety tones
-
Ideal for OEM+ sound upgrades where reliability and reversibility are required
FUNCTIONAL APPLICATIONS
-
Add subwoofer amplifier while keeping factory interior speakers
-
Feed high-level signal to DSP for staging and equalization
-
Run new full-range amplifier power to factory speaker circuits (when supported)
-
Can support amp bypass or re-amplification configurations
SPECIFICATIONS
-
Harness Type: T-Harness (Inline Plug + Pass-Through)
-
Signal Type: Speaker-Level (high-level)
-
Connector Style: Toyota / Lexus OEM amplifier connectors
-
Conductors: Color-coded, multi-strand copper, matched to OEM mapping
-
Cable Jacket: Heat & abrasion resistant vehicle-grade insulation
-
Does not affect OEM data networks or MOST fiber systems (when present)
INSTALLATION NOTES
-
Installs at the factory amplifier location, typically behind dash side panels or rear quarter interior panels (vehicle dependent)
-
Always verify polarity and channel mapping when routing to aftermarket amps or DSPs
-
If adding a DSP, set input mode to high-level unless using line converters
FITMENT
-
Select Toyota and Lexus models equipped with factory amplified audio systems
-
Common applications include (varies by year/trim):
-
Tacoma / Tundra / 4Runner / Highlander / Camry
-
Lexus RX / ES / GX / LX
-
-
Fitment is confirmed by matching amplifier connectors, not by model name alone
INCLUDES
-
APH-TY02 T-Harness Assembly
-
Quick reference installation sheet (varies by batch)